1 /*- 2 * Copyright (c) 2011-2012 Stefan Bethke. 3 * Copyright (c) 2012 Adrian Chadd. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #include <sys/param.h> 31 #include <sys/bus.h> 32 #include <sys/errno.h> 33 #include <sys/kernel.h> 34 #include <sys/malloc.h> 35 #include <sys/module.h> 36 #include <sys/socket.h> 37 #include <sys/sockio.h> 38 #include <sys/sysctl.h> 39 #include <sys/systm.h> 40 41 #include <net/if.h> 42 #include <net/if_var.h> 43 #include <net/if_arp.h> 44 #include <net/ethernet.h> 45 #include <net/if_dl.h> 46 #include <net/if_media.h> 47 #include <net/if_types.h> 48 49 #include <machine/bus.h> 50 #include <dev/iicbus/iic.h> 51 #include <dev/iicbus/iiconf.h> 52 #include <dev/iicbus/iicbus.h> 53 #include <dev/mii/mii.h> 54 #include <dev/mii/miivar.h> 55 #include <dev/mdio/mdio.h> 56 57 #include <dev/etherswitch/etherswitch.h> 58 59 #include <dev/etherswitch/arswitch/arswitchreg.h> 60 #include <dev/etherswitch/arswitch/arswitchvar.h> 61 #include <dev/etherswitch/arswitch/arswitch_reg.h> 62 #include <dev/etherswitch/arswitch/arswitch_phy.h> 63 #include <dev/etherswitch/arswitch/arswitch_vlans.h> 64 65 #include <dev/etherswitch/arswitch/arswitch_7240.h> 66 #include <dev/etherswitch/arswitch/arswitch_8216.h> 67 #include <dev/etherswitch/arswitch/arswitch_8226.h> 68 #include <dev/etherswitch/arswitch/arswitch_8316.h> 69 #include <dev/etherswitch/arswitch/arswitch_8327.h> 70 #include <dev/etherswitch/arswitch/arswitch_9340.h> 71 72 #include "mdio_if.h" 73 #include "miibus_if.h" 74 #include "etherswitch_if.h" 75 76 #if defined(DEBUG) 77 static SYSCTL_NODE(_debug, OID_AUTO, arswitch, CTLFLAG_RD, 0, "arswitch"); 78 #endif 79 80 static inline int arswitch_portforphy(int phy); 81 static void arswitch_tick(void *arg); 82 static int arswitch_ifmedia_upd(struct ifnet *); 83 static void arswitch_ifmedia_sts(struct ifnet *, struct ifmediareq *); 84 static int ar8xxx_port_vlan_setup(struct arswitch_softc *sc, 85 etherswitch_port_t *p); 86 static int ar8xxx_port_vlan_get(struct arswitch_softc *sc, 87 etherswitch_port_t *p); 88 89 static int 90 arswitch_probe(device_t dev) 91 { 92 struct arswitch_softc *sc; 93 uint32_t id; 94 char *chipname, desc[256]; 95 96 sc = device_get_softc(dev); 97 bzero(sc, sizeof(*sc)); 98 sc->page = -1; 99 100 /* AR7240 probe */ 101 if (ar7240_probe(dev) == 0) { 102 chipname = "AR7240"; 103 sc->sc_switchtype = AR8X16_SWITCH_AR7240; 104 sc->is_internal_switch = 1; 105 id = 0; 106 goto done; 107 } 108 109 /* AR9340 probe */ 110 if (ar9340_probe(dev) == 0) { 111 chipname = "AR9340"; 112 sc->sc_switchtype = AR8X16_SWITCH_AR9340; 113 sc->is_internal_switch = 1; 114 id = 0; 115 goto done; 116 } 117 118 /* AR8xxx probe */ 119 id = arswitch_readreg(dev, AR8X16_REG_MASK_CTRL); 120 sc->chip_rev = (id & AR8X16_MASK_CTRL_REV_MASK); 121 sc->chip_ver = (id & AR8X16_MASK_CTRL_VER_MASK) > AR8X16_MASK_CTRL_VER_SHIFT; 122 switch (id & (AR8X16_MASK_CTRL_VER_MASK | AR8X16_MASK_CTRL_REV_MASK)) { 123 case 0x0101: 124 chipname = "AR8216"; 125 sc->sc_switchtype = AR8X16_SWITCH_AR8216; 126 break; 127 case 0x0201: 128 chipname = "AR8226"; 129 sc->sc_switchtype = AR8X16_SWITCH_AR8226; 130 break; 131 /* 0x0301 - AR8236 */ 132 case 0x1000: 133 case 0x1001: 134 chipname = "AR8316"; 135 sc->sc_switchtype = AR8X16_SWITCH_AR8316; 136 break; 137 case 0x1202: 138 case 0x1204: 139 chipname = "AR8327"; 140 sc->sc_switchtype = AR8X16_SWITCH_AR8327; 141 sc->mii_lo_first = 1; 142 break; 143 default: 144 chipname = NULL; 145 } 146 147 done: 148 149 DPRINTF(dev, "chipname=%s, id=%08x\n", chipname, id); 150 if (chipname != NULL) { 151 snprintf(desc, sizeof(desc), 152 "Atheros %s Ethernet Switch (ver %d rev %d)", 153 chipname, 154 sc->chip_ver, 155 sc->chip_rev); 156 device_set_desc_copy(dev, desc); 157 return (BUS_PROBE_DEFAULT); 158 } 159 return (ENXIO); 160 } 161 162 static int 163 arswitch_attach_phys(struct arswitch_softc *sc) 164 { 165 int phy, err = 0; 166 char name[IFNAMSIZ]; 167 168 /* PHYs need an interface, so we generate a dummy one */ 169 snprintf(name, IFNAMSIZ, "%sport", device_get_nameunit(sc->sc_dev)); 170 for (phy = 0; phy < sc->numphys; phy++) { 171 sc->ifp[phy] = if_alloc(IFT_ETHER); 172 sc->ifp[phy]->if_softc = sc; 173 sc->ifp[phy]->if_flags |= IFF_UP | IFF_BROADCAST | 174 IFF_DRV_RUNNING | IFF_SIMPLEX; 175 sc->ifname[phy] = malloc(strlen(name)+1, M_DEVBUF, M_WAITOK); 176 bcopy(name, sc->ifname[phy], strlen(name)+1); 177 if_initname(sc->ifp[phy], sc->ifname[phy], 178 arswitch_portforphy(phy)); 179 err = mii_attach(sc->sc_dev, &sc->miibus[phy], sc->ifp[phy], 180 arswitch_ifmedia_upd, arswitch_ifmedia_sts, \ 181 BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, 0); 182 #if 0 183 DPRINTF(sc->sc_dev, "%s attached to pseudo interface %s\n", 184 device_get_nameunit(sc->miibus[phy]), 185 sc->ifp[phy]->if_xname); 186 #endif 187 if (err != 0) { 188 device_printf(sc->sc_dev, 189 "attaching PHY %d failed\n", 190 phy); 191 } 192 } 193 return (err); 194 } 195 196 static int 197 arswitch_reset(device_t dev) 198 { 199 200 arswitch_writereg(dev, AR8X16_REG_MASK_CTRL, 201 AR8X16_MASK_CTRL_SOFT_RESET); 202 DELAY(1000); 203 if (arswitch_readreg(dev, AR8X16_REG_MASK_CTRL) & 204 AR8X16_MASK_CTRL_SOFT_RESET) { 205 device_printf(dev, "unable to reset switch\n"); 206 return (-1); 207 } 208 return (0); 209 } 210 211 static int 212 arswitch_set_vlan_mode(struct arswitch_softc *sc, uint32_t mode) 213 { 214 215 /* Check for invalid modes. */ 216 if ((mode & sc->info.es_vlan_caps) != mode) 217 return (EINVAL); 218 219 switch (mode) { 220 case ETHERSWITCH_VLAN_DOT1Q: 221 sc->vlan_mode = ETHERSWITCH_VLAN_DOT1Q; 222 break; 223 case ETHERSWITCH_VLAN_PORT: 224 sc->vlan_mode = ETHERSWITCH_VLAN_PORT; 225 break; 226 default: 227 sc->vlan_mode = 0; 228 } 229 230 /* Reset VLANs. */ 231 sc->hal.arswitch_vlan_init_hw(sc); 232 233 return (0); 234 } 235 236 static void 237 ar8xxx_port_init(struct arswitch_softc *sc, int port) 238 { 239 240 /* Port0 - CPU */ 241 if (port == AR8X16_PORT_CPU) { 242 arswitch_writereg(sc->sc_dev, AR8X16_REG_PORT_STS(0), 243 (AR8X16_IS_SWITCH(sc, AR8216) ? 244 AR8X16_PORT_STS_SPEED_100 : AR8X16_PORT_STS_SPEED_1000) | 245 (AR8X16_IS_SWITCH(sc, AR8216) ? 0 : AR8X16_PORT_STS_RXFLOW) | 246 (AR8X16_IS_SWITCH(sc, AR8216) ? 0 : AR8X16_PORT_STS_TXFLOW) | 247 AR8X16_PORT_STS_RXMAC | 248 AR8X16_PORT_STS_TXMAC | 249 AR8X16_PORT_STS_DUPLEX); 250 arswitch_writereg(sc->sc_dev, AR8X16_REG_PORT_CTRL(0), 251 arswitch_readreg(sc->sc_dev, AR8X16_REG_PORT_CTRL(0)) & 252 ~AR8X16_PORT_CTRL_HEADER); 253 } else { 254 /* Set ports to auto negotiation. */ 255 arswitch_writereg(sc->sc_dev, AR8X16_REG_PORT_STS(port), 256 AR8X16_PORT_STS_LINK_AUTO); 257 arswitch_writereg(sc->sc_dev, AR8X16_REG_PORT_CTRL(port), 258 arswitch_readreg(sc->sc_dev, AR8X16_REG_PORT_CTRL(port)) & 259 ~AR8X16_PORT_CTRL_HEADER); 260 } 261 } 262 263 static int 264 ar8xxx_atu_flush(struct arswitch_softc *sc) 265 { 266 int ret; 267 268 ret = arswitch_waitreg(sc->sc_dev, 269 AR8216_REG_ATU, 270 AR8216_ATU_ACTIVE, 271 0, 272 1000); 273 274 if (ret) 275 device_printf(sc->sc_dev, "%s: waitreg failed\n", __func__); 276 277 if (!ret) 278 arswitch_writereg(sc->sc_dev, 279 AR8216_REG_ATU, 280 AR8216_ATU_OP_FLUSH); 281 282 return (ret); 283 } 284 285 static int 286 arswitch_attach(device_t dev) 287 { 288 struct arswitch_softc *sc; 289 int err = 0; 290 int port; 291 292 sc = device_get_softc(dev); 293 294 /* sc->sc_switchtype is already decided in arswitch_probe() */ 295 sc->sc_dev = dev; 296 mtx_init(&sc->sc_mtx, "arswitch", NULL, MTX_DEF); 297 sc->page = -1; 298 strlcpy(sc->info.es_name, device_get_desc(dev), 299 sizeof(sc->info.es_name)); 300 301 /* Default HAL methods */ 302 sc->hal.arswitch_port_init = ar8xxx_port_init; 303 sc->hal.arswitch_port_vlan_setup = ar8xxx_port_vlan_setup; 304 sc->hal.arswitch_port_vlan_get = ar8xxx_port_vlan_get; 305 sc->hal.arswitch_vlan_init_hw = ar8xxx_reset_vlans; 306 307 sc->hal.arswitch_vlan_getvgroup = ar8xxx_getvgroup; 308 sc->hal.arswitch_vlan_setvgroup = ar8xxx_setvgroup; 309 310 sc->hal.arswitch_vlan_get_pvid = ar8xxx_get_pvid; 311 sc->hal.arswitch_vlan_set_pvid = ar8xxx_set_pvid; 312 313 sc->hal.arswitch_get_dot1q_vlan = ar8xxx_get_dot1q_vlan; 314 sc->hal.arswitch_set_dot1q_vlan = ar8xxx_set_dot1q_vlan; 315 sc->hal.arswitch_flush_dot1q_vlan = ar8xxx_flush_dot1q_vlan; 316 sc->hal.arswitch_purge_dot1q_vlan = ar8xxx_purge_dot1q_vlan; 317 sc->hal.arswitch_get_port_vlan = ar8xxx_get_port_vlan; 318 sc->hal.arswitch_set_port_vlan = ar8xxx_set_port_vlan; 319 320 sc->hal.arswitch_atu_flush = ar8xxx_atu_flush; 321 322 sc->hal.arswitch_phy_read = arswitch_readphy_internal; 323 sc->hal.arswitch_phy_write = arswitch_writephy_internal; 324 325 326 /* 327 * Attach switch related functions 328 */ 329 if (AR8X16_IS_SWITCH(sc, AR7240)) 330 ar7240_attach(sc); 331 else if (AR8X16_IS_SWITCH(sc, AR9340)) 332 ar9340_attach(sc); 333 else if (AR8X16_IS_SWITCH(sc, AR8216)) 334 ar8216_attach(sc); 335 else if (AR8X16_IS_SWITCH(sc, AR8226)) 336 ar8226_attach(sc); 337 else if (AR8X16_IS_SWITCH(sc, AR8316)) 338 ar8316_attach(sc); 339 else if (AR8X16_IS_SWITCH(sc, AR8327)) 340 ar8327_attach(sc); 341 else { 342 DPRINTF(dev, "%s: unknown switch (%d)?\n", __func__, sc->sc_switchtype); 343 return (ENXIO); 344 } 345 346 /* Common defaults. */ 347 sc->info.es_nports = 5; /* XXX technically 6, but 6th not used */ 348 349 /* XXX Defaults for externally connected AR8316 */ 350 sc->numphys = 4; 351 sc->phy4cpu = 1; 352 sc->is_rgmii = 1; 353 sc->is_gmii = 0; 354 sc->is_mii = 0; 355 356 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 357 "numphys", &sc->numphys); 358 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 359 "phy4cpu", &sc->phy4cpu); 360 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 361 "is_rgmii", &sc->is_rgmii); 362 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 363 "is_gmii", &sc->is_gmii); 364 (void) resource_int_value(device_get_name(dev), device_get_unit(dev), 365 "is_mii", &sc->is_mii); 366 367 if (sc->numphys > AR8X16_NUM_PHYS) 368 sc->numphys = AR8X16_NUM_PHYS; 369 370 /* Reset the switch. */ 371 if (arswitch_reset(dev)) { 372 DPRINTF(dev, "%s: arswitch_reset: failed\n", __func__); 373 return (ENXIO); 374 } 375 376 err = sc->hal.arswitch_hw_setup(sc); 377 DPRINTF(dev, "%s: hw_setup: err=%d\n", __func__, err); 378 if (err != 0) 379 return (err); 380 381 err = sc->hal.arswitch_hw_global_setup(sc); 382 DPRINTF(dev, "%s: hw_global_setup: err=%d\n", __func__, err); 383 if (err != 0) 384 return (err); 385 386 /* Initialize the switch ports. */ 387 for (port = 0; port <= sc->numphys; port++) { 388 sc->hal.arswitch_port_init(sc, port); 389 } 390 391 /* 392 * Attach the PHYs and complete the bus enumeration. 393 */ 394 err = arswitch_attach_phys(sc); 395 DPRINTF(dev, "%s: attach_phys: err=%d\n", __func__, err); 396 if (err != 0) 397 return (err); 398 399 /* Default to ingress filters off. */ 400 err = arswitch_set_vlan_mode(sc, 0); 401 DPRINTF(dev, "%s: set_vlan_mode: err=%d\n", __func__, err); 402 if (err != 0) 403 return (err); 404 405 bus_generic_probe(dev); 406 bus_enumerate_hinted_children(dev); 407 err = bus_generic_attach(dev); 408 DPRINTF(dev, "%s: bus_generic_attach: err=%d\n", __func__, err); 409 if (err != 0) 410 return (err); 411 412 callout_init_mtx(&sc->callout_tick, &sc->sc_mtx, 0); 413 414 ARSWITCH_LOCK(sc); 415 arswitch_tick(sc); 416 ARSWITCH_UNLOCK(sc); 417 418 return (err); 419 } 420 421 static int 422 arswitch_detach(device_t dev) 423 { 424 struct arswitch_softc *sc = device_get_softc(dev); 425 int i; 426 427 callout_drain(&sc->callout_tick); 428 429 for (i=0; i < sc->numphys; i++) { 430 if (sc->miibus[i] != NULL) 431 device_delete_child(dev, sc->miibus[i]); 432 if (sc->ifp[i] != NULL) 433 if_free(sc->ifp[i]); 434 free(sc->ifname[i], M_DEVBUF); 435 } 436 437 bus_generic_detach(dev); 438 mtx_destroy(&sc->sc_mtx); 439 440 return (0); 441 } 442 443 /* 444 * Convert PHY number to port number. PHY0 is connected to port 1, PHY1 to 445 * port 2, etc. 446 */ 447 static inline int 448 arswitch_portforphy(int phy) 449 { 450 return (phy+1); 451 } 452 453 static inline struct mii_data * 454 arswitch_miiforport(struct arswitch_softc *sc, int port) 455 { 456 int phy = port-1; 457 458 if (phy < 0 || phy >= sc->numphys) 459 return (NULL); 460 return (device_get_softc(sc->miibus[phy])); 461 } 462 463 static inline struct ifnet * 464 arswitch_ifpforport(struct arswitch_softc *sc, int port) 465 { 466 int phy = port-1; 467 468 if (phy < 0 || phy >= sc->numphys) 469 return (NULL); 470 return (sc->ifp[phy]); 471 } 472 473 /* 474 * Convert port status to ifmedia. 475 */ 476 static void 477 arswitch_update_ifmedia(int portstatus, u_int *media_status, u_int *media_active) 478 { 479 *media_active = IFM_ETHER; 480 *media_status = IFM_AVALID; 481 482 if ((portstatus & AR8X16_PORT_STS_LINK_UP) != 0) 483 *media_status |= IFM_ACTIVE; 484 else { 485 *media_active |= IFM_NONE; 486 return; 487 } 488 switch (portstatus & AR8X16_PORT_STS_SPEED_MASK) { 489 case AR8X16_PORT_STS_SPEED_10: 490 *media_active |= IFM_10_T; 491 break; 492 case AR8X16_PORT_STS_SPEED_100: 493 *media_active |= IFM_100_TX; 494 break; 495 case AR8X16_PORT_STS_SPEED_1000: 496 *media_active |= IFM_1000_T; 497 break; 498 } 499 if ((portstatus & AR8X16_PORT_STS_DUPLEX) == 0) 500 *media_active |= IFM_FDX; 501 else 502 *media_active |= IFM_HDX; 503 if ((portstatus & AR8X16_PORT_STS_TXFLOW) != 0) 504 *media_active |= IFM_ETH_TXPAUSE; 505 if ((portstatus & AR8X16_PORT_STS_RXFLOW) != 0) 506 *media_active |= IFM_ETH_RXPAUSE; 507 } 508 509 /* 510 * Poll the status for all PHYs. We're using the switch port status because 511 * thats a lot quicker to read than talking to all the PHYs. Care must be 512 * taken that the resulting ifmedia_active is identical to what the PHY will 513 * compute, or gratuitous link status changes will occur whenever the PHYs 514 * update function is called. 515 */ 516 static void 517 arswitch_miipollstat(struct arswitch_softc *sc) 518 { 519 int i; 520 struct mii_data *mii; 521 struct mii_softc *miisc; 522 int portstatus; 523 int port_flap = 0; 524 525 ARSWITCH_LOCK_ASSERT(sc, MA_OWNED); 526 527 for (i = 0; i < sc->numphys; i++) { 528 if (sc->miibus[i] == NULL) 529 continue; 530 mii = device_get_softc(sc->miibus[i]); 531 /* XXX This would be nice to have abstracted out to be per-chip */ 532 /* AR8327/AR8337 has a different register base */ 533 if (AR8X16_IS_SWITCH(sc, AR8327)) 534 portstatus = arswitch_readreg(sc->sc_dev, 535 AR8327_REG_PORT_STATUS(arswitch_portforphy(i))); 536 else 537 portstatus = arswitch_readreg(sc->sc_dev, 538 AR8X16_REG_PORT_STS(arswitch_portforphy(i))); 539 #if 0 540 DPRINTF(sc->sc_dev, "p[%d]=%b\n", 541 i, 542 portstatus, 543 "\20\3TXMAC\4RXMAC\5TXFLOW\6RXFLOW\7" 544 "DUPLEX\11LINK_UP\12LINK_AUTO\13LINK_PAUSE"); 545 #endif 546 /* 547 * If the current status is down, but we have a link 548 * status showing up, we need to do an ATU flush. 549 */ 550 if ((mii->mii_media_status & IFM_ACTIVE) == 0 && 551 (portstatus & AR8X16_PORT_STS_LINK_UP) != 0) { 552 device_printf(sc->sc_dev, "%s: port %d: port -> UP\n", 553 __func__, 554 i); 555 port_flap = 1; 556 } 557 /* 558 * and maybe if a port goes up->down? 559 */ 560 if ((mii->mii_media_status & IFM_ACTIVE) != 0 && 561 (portstatus & AR8X16_PORT_STS_LINK_UP) == 0) { 562 device_printf(sc->sc_dev, "%s: port %d: port -> DOWN\n", 563 __func__, 564 i); 565 port_flap = 1; 566 } 567 arswitch_update_ifmedia(portstatus, &mii->mii_media_status, 568 &mii->mii_media_active); 569 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) { 570 if (IFM_INST(mii->mii_media.ifm_cur->ifm_media) != 571 miisc->mii_inst) 572 continue; 573 mii_phy_update(miisc, MII_POLLSTAT); 574 } 575 } 576 577 /* If a port went from down->up, flush the ATU */ 578 if (port_flap) 579 sc->hal.arswitch_atu_flush(sc); 580 } 581 582 static void 583 arswitch_tick(void *arg) 584 { 585 struct arswitch_softc *sc = arg; 586 587 arswitch_miipollstat(sc); 588 callout_reset(&sc->callout_tick, hz, arswitch_tick, sc); 589 } 590 591 static void 592 arswitch_lock(device_t dev) 593 { 594 struct arswitch_softc *sc = device_get_softc(dev); 595 596 ARSWITCH_LOCK_ASSERT(sc, MA_NOTOWNED); 597 ARSWITCH_LOCK(sc); 598 } 599 600 static void 601 arswitch_unlock(device_t dev) 602 { 603 struct arswitch_softc *sc = device_get_softc(dev); 604 605 ARSWITCH_LOCK_ASSERT(sc, MA_OWNED); 606 ARSWITCH_UNLOCK(sc); 607 } 608 609 static etherswitch_info_t * 610 arswitch_getinfo(device_t dev) 611 { 612 struct arswitch_softc *sc = device_get_softc(dev); 613 614 return (&sc->info); 615 } 616 617 static int 618 ar8xxx_port_vlan_get(struct arswitch_softc *sc, etherswitch_port_t *p) 619 { 620 uint32_t reg; 621 622 ARSWITCH_LOCK(sc); 623 624 /* Retrieve the PVID. */ 625 sc->hal.arswitch_vlan_get_pvid(sc, p->es_port, &p->es_pvid); 626 627 /* Port flags. */ 628 reg = arswitch_readreg(sc->sc_dev, AR8X16_REG_PORT_CTRL(p->es_port)); 629 if (reg & AR8X16_PORT_CTRL_DOUBLE_TAG) 630 p->es_flags |= ETHERSWITCH_PORT_DOUBLE_TAG; 631 reg >>= AR8X16_PORT_CTRL_EGRESS_VLAN_MODE_SHIFT; 632 if ((reg & 0x3) == AR8X16_PORT_CTRL_EGRESS_VLAN_MODE_ADD) 633 p->es_flags |= ETHERSWITCH_PORT_ADDTAG; 634 if ((reg & 0x3) == AR8X16_PORT_CTRL_EGRESS_VLAN_MODE_STRIP) 635 p->es_flags |= ETHERSWITCH_PORT_STRIPTAG; 636 ARSWITCH_UNLOCK(sc); 637 638 return (0); 639 } 640 641 static int 642 arswitch_is_cpuport(struct arswitch_softc *sc, int port) 643 { 644 645 return ((port == AR8X16_PORT_CPU) || 646 ((AR8X16_IS_SWITCH(sc, AR8327) && 647 port == AR8327_PORT_GMAC6))); 648 } 649 650 static int 651 arswitch_getport(device_t dev, etherswitch_port_t *p) 652 { 653 struct arswitch_softc *sc; 654 struct mii_data *mii; 655 struct ifmediareq *ifmr; 656 int err; 657 658 sc = device_get_softc(dev); 659 /* XXX +1 is for AR8327; should make this configurable! */ 660 if (p->es_port < 0 || p->es_port > sc->info.es_nports) 661 return (ENXIO); 662 663 err = sc->hal.arswitch_port_vlan_get(sc, p); 664 if (err != 0) 665 return (err); 666 667 mii = arswitch_miiforport(sc, p->es_port); 668 if (arswitch_is_cpuport(sc, p->es_port)) { 669 /* fill in fixed values for CPU port */ 670 /* XXX is this valid in all cases? */ 671 p->es_flags |= ETHERSWITCH_PORT_CPU; 672 ifmr = &p->es_ifmr; 673 ifmr->ifm_count = 0; 674 ifmr->ifm_current = ifmr->ifm_active = 675 IFM_ETHER | IFM_1000_T | IFM_FDX; 676 ifmr->ifm_mask = 0; 677 ifmr->ifm_status = IFM_ACTIVE | IFM_AVALID; 678 } else if (mii != NULL) { 679 err = ifmedia_ioctl(mii->mii_ifp, &p->es_ifr, 680 &mii->mii_media, SIOCGIFMEDIA); 681 if (err) 682 return (err); 683 } else { 684 return (ENXIO); 685 } 686 return (0); 687 } 688 689 static int 690 ar8xxx_port_vlan_setup(struct arswitch_softc *sc, etherswitch_port_t *p) 691 { 692 uint32_t reg; 693 int err; 694 695 ARSWITCH_LOCK(sc); 696 697 /* Set the PVID. */ 698 if (p->es_pvid != 0) 699 sc->hal.arswitch_vlan_set_pvid(sc, p->es_port, p->es_pvid); 700 701 /* Mutually exclusive. */ 702 if (p->es_flags & ETHERSWITCH_PORT_ADDTAG && 703 p->es_flags & ETHERSWITCH_PORT_STRIPTAG) { 704 ARSWITCH_UNLOCK(sc); 705 return (EINVAL); 706 } 707 708 reg = 0; 709 if (p->es_flags & ETHERSWITCH_PORT_DOUBLE_TAG) 710 reg |= AR8X16_PORT_CTRL_DOUBLE_TAG; 711 if (p->es_flags & ETHERSWITCH_PORT_ADDTAG) 712 reg |= AR8X16_PORT_CTRL_EGRESS_VLAN_MODE_ADD << 713 AR8X16_PORT_CTRL_EGRESS_VLAN_MODE_SHIFT; 714 if (p->es_flags & ETHERSWITCH_PORT_STRIPTAG) 715 reg |= AR8X16_PORT_CTRL_EGRESS_VLAN_MODE_STRIP << 716 AR8X16_PORT_CTRL_EGRESS_VLAN_MODE_SHIFT; 717 718 err = arswitch_modifyreg(sc->sc_dev, 719 AR8X16_REG_PORT_CTRL(p->es_port), 720 0x3 << AR8X16_PORT_CTRL_EGRESS_VLAN_MODE_SHIFT | 721 AR8X16_PORT_CTRL_DOUBLE_TAG, reg); 722 723 ARSWITCH_UNLOCK(sc); 724 return (err); 725 } 726 727 static int 728 arswitch_setport(device_t dev, etherswitch_port_t *p) 729 { 730 int err; 731 struct arswitch_softc *sc; 732 struct ifmedia *ifm; 733 struct mii_data *mii; 734 struct ifnet *ifp; 735 736 sc = device_get_softc(dev); 737 if (p->es_port < 0 || p->es_port > sc->info.es_nports) 738 return (ENXIO); 739 740 /* Port flags. */ 741 if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) { 742 err = sc->hal.arswitch_port_vlan_setup(sc, p); 743 if (err) 744 return (err); 745 } 746 747 /* Do not allow media changes on CPU port. */ 748 if (arswitch_is_cpuport(sc, p->es_port)) 749 return (0); 750 751 mii = arswitch_miiforport(sc, p->es_port); 752 if (mii == NULL) 753 return (ENXIO); 754 755 ifp = arswitch_ifpforport(sc, p->es_port); 756 757 ifm = &mii->mii_media; 758 return (ifmedia_ioctl(ifp, &p->es_ifr, ifm, SIOCSIFMEDIA)); 759 } 760 761 static void 762 arswitch_statchg(device_t dev) 763 { 764 765 DPRINTF(dev, "%s\n", __func__); 766 } 767 768 static int 769 arswitch_ifmedia_upd(struct ifnet *ifp) 770 { 771 struct arswitch_softc *sc = ifp->if_softc; 772 struct mii_data *mii = arswitch_miiforport(sc, ifp->if_dunit); 773 774 if (mii == NULL) 775 return (ENXIO); 776 mii_mediachg(mii); 777 return (0); 778 } 779 780 static void 781 arswitch_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 782 { 783 struct arswitch_softc *sc = ifp->if_softc; 784 struct mii_data *mii = arswitch_miiforport(sc, ifp->if_dunit); 785 786 DPRINTF(sc->sc_dev, "%s\n", __func__); 787 788 if (mii == NULL) 789 return; 790 mii_pollstat(mii); 791 ifmr->ifm_active = mii->mii_media_active; 792 ifmr->ifm_status = mii->mii_media_status; 793 } 794 795 static int 796 arswitch_getconf(device_t dev, etherswitch_conf_t *conf) 797 { 798 struct arswitch_softc *sc; 799 800 sc = device_get_softc(dev); 801 802 /* Return the VLAN mode. */ 803 conf->cmd = ETHERSWITCH_CONF_VLAN_MODE; 804 conf->vlan_mode = sc->vlan_mode; 805 806 return (0); 807 } 808 809 static int 810 arswitch_setconf(device_t dev, etherswitch_conf_t *conf) 811 { 812 struct arswitch_softc *sc; 813 int err; 814 815 sc = device_get_softc(dev); 816 817 /* Set the VLAN mode. */ 818 if (conf->cmd & ETHERSWITCH_CONF_VLAN_MODE) { 819 err = arswitch_set_vlan_mode(sc, conf->vlan_mode); 820 if (err != 0) 821 return (err); 822 } 823 824 return (0); 825 } 826 827 static int 828 arswitch_getvgroup(device_t dev, etherswitch_vlangroup_t *e) 829 { 830 struct arswitch_softc *sc = device_get_softc(dev); 831 832 return (sc->hal.arswitch_vlan_getvgroup(sc, e)); 833 } 834 835 static int 836 arswitch_setvgroup(device_t dev, etherswitch_vlangroup_t *e) 837 { 838 struct arswitch_softc *sc = device_get_softc(dev); 839 840 return (sc->hal.arswitch_vlan_setvgroup(sc, e)); 841 } 842 843 static int 844 arswitch_readphy(device_t dev, int phy, int reg) 845 { 846 struct arswitch_softc *sc = device_get_softc(dev); 847 848 return (sc->hal.arswitch_phy_read(dev, phy, reg)); 849 } 850 851 static int 852 arswitch_writephy(device_t dev, int phy, int reg, int val) 853 { 854 struct arswitch_softc *sc = device_get_softc(dev); 855 856 return (sc->hal.arswitch_phy_write(dev, phy, reg, val)); 857 } 858 859 static device_method_t arswitch_methods[] = { 860 /* Device interface */ 861 DEVMETHOD(device_probe, arswitch_probe), 862 DEVMETHOD(device_attach, arswitch_attach), 863 DEVMETHOD(device_detach, arswitch_detach), 864 865 /* bus interface */ 866 DEVMETHOD(bus_add_child, device_add_child_ordered), 867 868 /* MII interface */ 869 DEVMETHOD(miibus_readreg, arswitch_readphy), 870 DEVMETHOD(miibus_writereg, arswitch_writephy), 871 DEVMETHOD(miibus_statchg, arswitch_statchg), 872 873 /* MDIO interface */ 874 DEVMETHOD(mdio_readreg, arswitch_readphy), 875 DEVMETHOD(mdio_writereg, arswitch_writephy), 876 877 /* etherswitch interface */ 878 DEVMETHOD(etherswitch_lock, arswitch_lock), 879 DEVMETHOD(etherswitch_unlock, arswitch_unlock), 880 DEVMETHOD(etherswitch_getinfo, arswitch_getinfo), 881 DEVMETHOD(etherswitch_readreg, arswitch_readreg), 882 DEVMETHOD(etherswitch_writereg, arswitch_writereg), 883 DEVMETHOD(etherswitch_readphyreg, arswitch_readphy), 884 DEVMETHOD(etherswitch_writephyreg, arswitch_writephy), 885 DEVMETHOD(etherswitch_getport, arswitch_getport), 886 DEVMETHOD(etherswitch_setport, arswitch_setport), 887 DEVMETHOD(etherswitch_getvgroup, arswitch_getvgroup), 888 DEVMETHOD(etherswitch_setvgroup, arswitch_setvgroup), 889 DEVMETHOD(etherswitch_getconf, arswitch_getconf), 890 DEVMETHOD(etherswitch_setconf, arswitch_setconf), 891 892 DEVMETHOD_END 893 }; 894 895 DEFINE_CLASS_0(arswitch, arswitch_driver, arswitch_methods, 896 sizeof(struct arswitch_softc)); 897 static devclass_t arswitch_devclass; 898 899 DRIVER_MODULE(arswitch, mdio, arswitch_driver, arswitch_devclass, 0, 0); 900 DRIVER_MODULE(miibus, arswitch, miibus_driver, miibus_devclass, 0, 0); 901 DRIVER_MODULE(mdio, arswitch, mdio_driver, mdio_devclass, 0, 0); 902 DRIVER_MODULE(etherswitch, arswitch, etherswitch_driver, etherswitch_devclass, 0, 0); 903 MODULE_VERSION(arswitch, 1); 904 MODULE_DEPEND(arswitch, miibus, 1, 1, 1); /* XXX which versions? */ 905 MODULE_DEPEND(arswitch, etherswitch, 1, 1, 1); /* XXX which versions? */ 906